A:
Positive:
1 x 1564233797 x 2234619743 x 363775347 x 3328157301 x 519679329 x 4754512021 x 7739911057 x 14147
Negative:
-1 x -156423379-7 x -22346197-43 x -3637753-47 x -3328157-301 x -519679-329 x -475451-2021 x -77399-11057 x -14147
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 156,423,379, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 156,423,379 | |
| -1 | -156,423,379 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,423,379.
Example:
1 x 156,423,379 = 156,423,379
and
-1 x -156,423,379 = 156,423,379
Notice both answers equal 156,423,379
With that explanation out of the way, let's continue. Next, we take the number 156,423,379 and divide it by 2:
156,423,379 ÷ 2 = 78,211,689.5
If the quotient is a whole number, then 2 and 78,211,689.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 156,423,379 | |
| -1 | -156,423,379 |
Now, we try dividing 156,423,379 by 3:
156,423,379 ÷ 3 = 52,141,126.3333
If the quotient is a whole number, then 3 and 52,141,126.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 156,423,379 | |
| -1 | -156,423,379 |
Let's try dividing by 4:
156,423,379 ÷ 4 = 39,105,844.75
If the quotient is a whole number, then 4 and 39,105,844.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 156,423,379 | |
| -1 | 156,423,379 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 47 | 301 | 329 | 2,021 | 11,057 | 14,147 | 77,399 | 475,451 | 519,679 | 3,328,157 | 3,637,753 | 22,346,197 | 156,423,379 |
| -1 | -7 | -43 | -47 | -301 | -329 | -2,021 | -11,057 | -14,147 | -77,399 | -475,451 | -519,679 | -3,328,157 | -3,637,753 | -22,346,197 | -156,423,379 |
Here are some more numbers to try:
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